Products Description of Sodium hydroxide CAS# 1310-73-2
Sodium hydroxide, also known as caustic soda and lye (note: corrected duplicate alias), has the chemical formula NaOH. It is a highly corrosive strong base, typically existing as white flakes or granules. It can mix with water to form an alkaline solution and is also soluble in methanol and ethanol. This alkaline substance is deliquescent, absorbing water vapor from the air as well as acidic gases such as carbon dioxide. As one of the most commonly used chemicals, sodium hydroxide has a broad range of applications and is an essential material in numerous industrial processes: it is frequently used in the production of wood pulp paper, textiles, soaps, and other detergents, and is also found in household alkaline drain cleaners.
Parameters
Melting point | 681 °C(lit.) |
Boiling point | 1390°C |
density | 1.515 g/mL at 20 °C |
vapor density | <1 (vs air) |
vapor pressure | 1 mm Hg ( 745 °C) |
refractive index | 1,473-1,475 |
Fp | 176-178°C |
storage temp. | room temp |
solubility | H2O: 1 M at 20 °C, clear, colorless |
form | beads |
color | White |
Specific Gravity | 2.13 |
PH Range | 13 - 14 |
PH | 10.98(1 mM solution);11.95(10 mM solution);12.88(100 mM solution); |
Odor | Odorless |
Water Solubility | SOLUBLE |
λmax | λ: 260 nm Amax: 0.015 |
Decomposition | 176-178 ºC |
Sensitive | Air Sensitive & Hygroscopic |
Merck | 14,8627 |
Dielectric constant | 57.5（25℃） |
Exposure limits | TLV-TWA air 2 mg/m3 (OSHA); ceiling 2 mg/m3 (ACGIH) and 2 mg/m3/15 min (NIOSH). |
Stability: | hygroscopic |
CAS DataBase Reference | 1310-73-2(CAS DataBase Reference) |
NIST Chemistry Reference | Sodium hydroxide(1310-73-2) |
EPA Substance Registry System | Sodium hydroxide (1310-73-2) |
Safety Information
Hazard Codes | C,Xi |
Risk Statements | 36/38-35-34 |
Safety Statements | 26-45-37/39-24/25-36/37/39 |
RIDADR | UN 1824 8/PG 2 |
OEL | Ceiling: 2 mg/m3 |
WGK Germany | 1 |
RTECS | TT2975000 |
F | 8 |
TSCA | Yes |
HS Code | 2815 11 00 |
HazardClass | 8 |
PackingGroup | II |
Hazardous Substances Data | 1310-73-2(Hazardous Substances Data) |
Toxicity | LD orally in rabbits: 500 mg/kg (10% soln) (Fazekas) |
IDLA | 10 mg/m3 |
Product Application of Sodium hydroxide CAS# 1310-73-2
Applications: Chemical experiments (reagent, alkaline desiccant via strong hygroscopicity). Industrial sectors (highest consumption: pharmaceutical chemicals) → papermaking, Al/W smelting, viscose rayon/artificial cotton, soap; also dyes/plastics/pharmaceuticals/organic intermediates, waste rubber recycling, gold production, water electrolysis, inorganic salts, borax/chromates/manganates/phosphates. Standards: Industrial (GB209-2006), ion-exchange membrane (GB/T11199-89), chemical fiber (GB11212-89), food-grade (GB5175-85).
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Inventory 2-3 working days New production 7-10 working days
